Home / 120,850.23-166,769.69-66,402.30

Finding the Fourth Proportional to 120,850.23, 166,769.69 and 66,402.30

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Solution

The fourth proportional to 120,850.23, 166,769.69 and 66,402.30 is: 91,633.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    120,850.23 : 166,769.69 = 66,402.30 : x
  2. Step 2: Convert to fraction form
    120,850.23/166,769.69 = 66,402.30/x
  3. Step 3: Cross multiply
    120,850.23x = 166,769.69 × 66,402.30
  4. Step 4: Simplify right side
    120,850.23x = 11,073,890,318.44
  5. Step 5: Solve for x
    x = 11,073,890,318.44/120,850.23
  6. Step 6: Final answer
    x = 91,633.18

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.